A 'sensor' is a device that measures a physical quantity and converts it into a 'signal' which can be read by an observer or by an instrument. For example: a digital thermometer has a temperature sensor that captures a signal and displays it in the screen.
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Definition/Theory (Class Summary)
A 'sensor' is a device that measures a physical quantity and converts it into a 'signal' which can be read by an observer or by an instrument. For example: a digital thermometer has a temperature sensor that captures a signal and displays it in the screen.
News Articles
Exam questions or things to think about Social and Ethical Issues
Class Exercises
Examples or Activities